Java tutorial
//package com.java2s; import java.awt.Component; import java.awt.Font; public class Main { /** * Change a component's Font size. * <p> * The Font family and Font style are preserved in the updated Font. * @param component The component to change the Font presentation of. * @param size The new size of Font. * @return The new Font installed to the component. */ public static Font changeFontSize(Component component, float size) { Font existingFont = component.getFont(); Font newFont = existingFont.deriveFont(size); component.setFont(newFont); return newFont; } }